From 54619803b0ff4ece613ad9cb826c5cfc3e798543 Mon Sep 17 00:00:00 2001
From: Ryan Boren <ryan@git.wordpress.org>
Date: Mon, 20 Aug 2012 20:48:35 +0000
Subject: [PATCH] Introduce is_ms_switched(). see #21459

git-svn-id: https://develop.svn.wordpress.org/trunk@21560 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-includes/ms-blogs.php | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/wp-includes/ms-blogs.php b/wp-includes/ms-blogs.php
index fb9f2befb9..efc678b4fb 100644
--- a/wp-includes/ms-blogs.php
+++ b/wp-includes/ms-blogs.php
@@ -567,6 +567,17 @@ function restore_current_blog() {
 	return true;
 }
 
+/**
+ * Determines if switch_to_blog() is in effect
+ *
+ * @since 3.5.0
+ *
+ * @return bool True if switched, false otherwise.
+ */
+function is_ms_switched() {
+	return $GLOBALS['_wp_switched'];
+}
+
 /**
  * Check if a particular blog is archived.
  *